package com.hualian.ticket.controller;

import com.aliyuncs.CommonRequest;
import com.aliyuncs.CommonResponse;
import com.aliyuncs.DefaultAcsClient;
import com.aliyuncs.IAcsClient;
import com.aliyuncs.exceptions.ClientException;
import com.aliyuncs.exceptions.ServerException;
import com.aliyuncs.http.MethodType;
import com.aliyuncs.profile.DefaultProfile;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.hualian.ticket.exception.BusinessException;
import com.hualian.ticket.pojo.User;
import com.hualian.ticket.service.UserService;
import com.hualian.ticket.util.JsonResult;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;
import java.util.Map;
import java.util.concurrent.TimeUnit;

/**
 * @author 陈静
 * @date 2020/10/21 10:06
 */
@RestController
@RequestMapping("/sms")
public class SMSController {
    @Resource
    UserService userService;
    //java操作redis，是借助于RedisTemplate
    @Resource
    RedisTemplate<String,String> redisTemplate;
    @PostMapping("/send")
    public Map send(@RequestParam(value = "phone") String phone) throws BusinessException {
        //判断该手机号是否已注册
        User byPhone = userService.findByPhone(phone);
        JsonResult jsonResult = new JsonResult();
        if(byPhone!=null){
            //如果是，则提示：该用户已经注册，请更换手机号，或者登录
            throw new BusinessException("用户已经注册，请更换手机号，或者登录");
        }else{
            //如果不是，可以注册，就需要调用阿里云短信接口，实现发送

            //接收来自阿里云的返回数据
            //
            DefaultProfile profile = DefaultProfile.getProfile("cn-hangzhou", "LTAI4GDsSPwQS2cLhBKhTwy5", "iPVuUbIyW4cwCurJiGLUeopX3u8MIw");
            IAcsClient client = new DefaultAcsClient(profile);

            CommonRequest request = new CommonRequest();
            request.setSysMethod(MethodType.POST);
            request.setSysDomain("dysmsapi.aliyuncs.com");
            request.setSysVersion("2017-05-25");
            request.setSysAction("SendSms");
            request.putQueryParameter("RegionId", "cn-hangzhou");
            request.putQueryParameter("PhoneNumbers", phone);
            request.putQueryParameter("SignName", "囧C");
            request.putQueryParameter("TemplateCode", "SMS_204981054");

            //生成4位随机数验证码(1-9)
            String code="";
            for (int i=0;i<4;i++){
                code+=(int)(Math.random()*9+1);
            }
            // 给阿里云短信模板中的${code}赋值，json格式
            request.putQueryParameter("TemplateParam", "{'code':"+code+"}");
            try {
                CommonResponse response = client.getCommonResponse(request);
                // 获取的验证码数据,
                String data = response.getData();
                //{"Message":"OK","RequestId":"CBC83055-A113-483A-91B2-0E4C56CCC643","BizId":"790710603115763709^0","Code":"OK"}

                ObjectMapper mapper = new ObjectMapper();
                Map<String, Object> tmpMap=mapper.readValue(data, Map.class);
                if("OK".equals(tmpMap.get("Code"))){
                    jsonResult.setCode("1");
                    jsonResult.setMsg("验证码发送成功");

                    // 将数据保存在redis服务器上, 15分钟有效
                    //1.利用RedisTemplate绑定要操作的数据类型，生成对应的操作符对象
                    ValueOperations<String,String> operations = redisTemplate.opsForValue();
                    operations.set("sms:"+phone,code,60, TimeUnit.SECONDS);
                    // 设置生存时间

                }else{
                    jsonResult.setCode("0");
                    jsonResult.setMsg("验证码发送失败,请检查手机号或稍后再试");
                }
            } catch (ServerException e) {
                e.printStackTrace();
            } catch (ClientException e) {
                e.printStackTrace();
            } catch (JsonMappingException e) {
                e.printStackTrace();
            } catch (JsonProcessingException e) {
                e.printStackTrace();
            }
        }
    return jsonResult.getValues();
    }
}
